The median annual wage for Biological Science Teachers, Postsecondary in Illinois is $83,580 (May 2024 BLS OES). The mean (average) is $90,850.
Pay spans roughly $39,990 at the 10th percentile to $137,570 at the 90th, so experience and specialisation move this figure a lot. An estimated 1,700 people work as biological science teachers, postsecondary in Illinois.
| Median (annual) | $83,580 |
| Mean (annual) | $90,850 |
| Median (hourly) | — |
| 10th percentile | $39,990 |
| 90th percentile | $137,570 |
| Employment | 1,700 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.